Sunn Venture S1
GRX 820
Sunn Venture S1
adventure and bikepacking gravel bike, aluminium frame, 700c wheels, 2×12 drivetrain, entry level equipment
Key specs
- Model year
- 2026
- Weight
- 9.9 kg
- Frame
- Aluminium
- Wheelset
- 700c · Mach1 Wookx 25 tubeless
ALLOY 6013 EDGE TUBING
Mach1 Wookx 25 tubeless, taille 700
- Drivetrain
- 2×12
- Groupset
- Shimano GRX RX820
- Brake model
- Shimano GRX BR-RX410
- Seatpost
- Rigid · BRUTE CARBON 27,2X300MM (S/M), 27,2X350MM (L/XL)
Character
The bike at a glance: the ground it is made for, how it handles, its gears and its equipment, beside the other bikes of its kind.
« Gravel bike very demanding, very stable, entry-level equipment. »
EasyDemanding
Built for rougher ground than most other gravel bikes.
NimbleStable
Steadier at speed than most other gravel bikes.
Not enough data yet for the Gearing chart: it fills in once the sheet is complete.
Not enough data yet for the Equipment level chart: it fills in once the sheet is complete.
Venture S1other gravel bikes
Spec sheet
Every value is read on the brand’s page; hover it to see its source and date.
Ride type
- Ride type
- Adventure and bikepacking
- Suspension
- Rigid
Un cadre taillé pour l’évasion ; amateurs de bikepacking
Frame and fork
- Frame
- Aluminium
- Fork
- Carbon
- Max tyre clearance
- Being updated
- Cable routing
- Internal
ALLOY 6013 EDGE TUBING
FULL CARBON HM
FULL INTERNAL CABLE ROUTING
Drivetrain
- Groupset brand
- Shimano
- Groupset
- Shimano GRX RX820
- Shifting
- Mechanical
- Chainrings
- 2
- Gears at the back
- 12
- Chainring teeth
- SHIMANO GRX RX610 30X46T 165MM (S)
- Cassette
- Shimano 105 R7101 11-36 12v
- Rear derailleur
- SHIMANO GRX RX820 12V AR SHIMANO GRX RX820 2V AV
Shimano GRX RX820 12V
SHIMANO GRX RX820 12V AR SHIMANO GRX RX820 2V AV
Brakes
- Brakes
- Hydraulic disc
- Brake model
- Shimano GRX BR-RX410
- Front rotor
- 160 mm
- Rear rotor
- 160 mm
Shimano GRX 400 Disque hydraulique
Wheels and tyres
- Wheel size
- 700c / 29"
- Wheelset
- Mach1 Wookx 25 tubeless
- Rims
- Aluminium
- Tubeless ready
- yes
- Tyres
- Hutchinson Touareg Reinforced 700x45 TLR
- Tyre width fitted
- 45 mm
Mach1 Wookx 25 tubeless, taille 700
Cockpit and seatpost
- Seatpost
- Rigid
- Handlebar
- FLARE 25° 400MM (S)
- Stem
- FLARE 25° 400MM (S)
- Seatpost model
- BRUTE CARBON 27,2X300MM (S/M), 27,2X350MM (L/XL)
Weight
- Weight
- 9.9 kg
Mounts and storage
- Rack mounts
- Being updated
Geometry
- Geometry size
- M
- Stack
- 577 mm
- Reach
- 385 mm
- Head angle
- 70.5 °
- Seat angle
- 73.5 °
- Chainstays
- 435 mm
- Wheelbase
- 1,047 mm
Spec sheets read at: sunn.fr
Geometry
4 sizes: S, M, L, XL.
| Geometry of the Venture S1 per size | ||||
|---|---|---|---|---|
| Reach (mm) | 378 | 385 | 395 | 405 |
| Stack (mm) | 556 | 577 | 596 | 621 |
| Top tube (effective) (mm) | 543 | 556 | 571 | 589 |
| Seat tube (mm) | 440 | 480 | 510 | 550 |
| Head tube (mm) | 125 | 145 | 165 | 190 |
| Head angle (°) | 70 | 70.5 | 70.5 | 71 |
| Seat angle (°) | 73.5 | 73.5 | 73.5 | 73.5 |
| Chainstays (mm) | 435 | 435 | 435 | 435 |
| Wheelbase (mm) | 1,037 | 1,047 | 1,063 | 1,077 |
| Front centre (mm) | 612 | 622 | 638 | 651 |
| Trail (mm) | 125 | 120 | 120 | 116 |
The range
Comparable gravel bikes
Who is it for?
The sports the brand announces, and the features that go with them.
Cycling
- Ride type: Adventure and bikepacking
- Groupset: Shimano GRX RX820
- Weight: 9.9 kg